Water-tube boiler.



s. THURSTENSEN. WATER TUBE BOILER.

APPLICATION FlLED JULY 25.1914- G W WM w? m t fi m Y W 7 M 00 .7, 2 7 ma1 WW APPLICATION FILED JULY 25. 1914.

s. THURSTENSEN.

WATER TUBE BOILER.

Patented Oct. 26, 1915.

2 SHEETS SHEET 2- UNITED STATES PA SOREN THURSTENSEN, OF LOUISVILLE,KENTUCKY, ASSIGNOR T0 HENRY VOGT MACHINE (30., OF LOUISVILLE, KENTUCKY,A CORPDBATION OF KENTUCKY.

WATER-TUBE BOILER.

Tube Boilers, of which the following is a specification.

The present invention relates toa boiler of the well known water tubetype, and more particularly to the arrangement of baliles and thelocation of the steam superheating. drum within the boiler.

The objects of the present invention are to. provide a series of battlesso arranged as to .cause an eflicient circulation of heat around all ofthe tubes of the boiler; to ar range at one point within the boiler arestricted opening so as to insure, a free circulatioaof the gases aboutcertain of the tubes-during their passage through this openingyand toarrange the steam superheating drumwhereby it will be heated suf-Iicient to carry out the purpose thereof, but will be outof direct lineof travel of the gases, so that danger of burning out the drum iseliminated.

In the drawings: Figure 1 is a side view of the boiler of the presentinvention with certain of the parts in section; and Fig. 2 is a sectionon'line 2 2 of Fig. 1, looking in the direction of the arrow.

The boiler illustrated comprises ii. body 3 of "any suitable style andformation having therein the usual. grate 4, and communicating with theinterior of the body is the usual smoke stack 5 A water drum 6, a granddrum 7, asteam drum 8 and asteam s1 perheating'drum flare locatediwithinthe boiler and supported therein in any suitable man- A rear set oftubes10 connect the 'vwat'er drum with the mud drum. A lower baflle, 16.Located niediall 5&1

set of-tubes 11 connect the mud drum-With the steam drum, anintermediate set of tubes 12 connect'the steam with the Water drum,

and an upper set of tubes M connect the steam drum with thesuper-heating drum,

and the superrheating drum with the water drum. I .Above the grate 4 isan arch 15, and extending from the said arch rearwardly to a pointadiacent the mud drum 7 and below theglowermost of the tubes 11 is alower or approxixiqpitelymedially of the set 0 Specification of Letterslatent. 1

might r'esnlt in'their burning out.

tubes 11 is an Patented Got. 26, 191%:

Application filed M13 25, 1914. Serial No. 853,068.

is clearly indicated-by the arrows inxFig. 1,

'i'he course of the gases.

extending from the I and, as shown, passes beneath the baille 16;

thence upward, thence forward between the battles ll} and 17, thenceupward again and over the top of the balile l5,thence*'downward andbetween the baffles. 17" and 20, thence rearwardly around the tubes 10,and

thence upwardly to the smoke stack.

From the foregoing, it is apparent that every part of the tubes of thesets of tubes of theboiler is-aifected by the circulating gases, and isefficiently acted upon, so that proper results from the combustion ofthe fuel as respects the generation'of obtained. By the use of the arch15 and battle 10, a high state of furnace temperature is obtained whichinsures smokeless combustion, and by the arrangement of the arch andbattle this high furnace temperature is obtained without subjecting thetubes of the lower setll to an undue heat which it will be noted thatthe rear bafiie l9 terminates .Yeryclose to the upper of the tubes 11,thus insuring that the gases will pass downward over that'portion of theupper of the tubes 11 adjacent the bathe I9.

It will be noted that the super-heating steam are drum 9 is located sothat it extends partially into the passage between the vertical battlesso locating same time it is located in a'position Where j it ismaintained sutliciently hot to perform its function, that is, thesuper-heating of.

steam. It is, of course. obvious that a drum of this character could notbe sub3ected to:

the same temperature as'a steam, Water, 01"

mud-drum without danger of its burning not near so out. since it is. ofcourse. filled Jnly with steam, and the amount of moisture in it is 1tas in the cases of the other of drums, an upper. lower. intermediate andrear set of tubes connectingsaid drums, a lower battle extending alongthe bottom of the. lower set of tubes to a point adjacent the rear ofsaid tubes, an intermediate ballle lying medially of the lower setoftubes and extending from the rear of said tubes to adjacent the frontthereof, a forward battle extending from the front of the intermediatebatlle to a point above the intermediate set of tubes. a rear batlleextending from above the intermediate tubes to a point below saidintermediate tubes and extending above and away from the upper tunes ofthe lower set of tubes, an upper bafile extending from the lower portionof the rear bafile to adjacent the rear set of tubes, and a smoke stackabove said upper bafile', substantially as described.

SOREN 'rnnnsrm

